3D Systems projet mjp 2500 User Manual page 86

Problem
Color mixing
Printed part changes shade
Part color fades
Permanent marks on part after post
processing
Surface Finish
Top surface shine and matte
Side surface vs. top/bottom surface The top/bottom surfaces appears smooth while the side
Part Distortion
Curl: While printing
Curl: Post Processing
Dimensional accuracy
Other
Description
The printed material appears to have small areas of lighter or
darker color
The top portion of the part does not have the same shade as
the bottom portion of the part.
The printed part fades from clear to yellow (when printing
with clear material or black to gray) when printing with black
material.
The finished part has an outline and discoloration in the
shape of another post processed part.
The top horizontal surface of the printed part has some areas
that are shiny (glossy appearance) and some areas that have
a matte finish.
surfaces appear to be rough or have steps of material.
Part is bowed or curled and surface is no longer flat, curling
occurs in the z-axis (vertical direction) from the print
platform. The curls occurs prior to post processing the part.
Part is bowed or curled and surface is no longer flat after post
processing the part
The completed part does not match the size desired.
Troubleshooting Steps
1. Inserting a different part material color can result in a
small amount of color mixing which may show up on the
printed part. This will clear on its own.
2. If you are concerned with mixing on your next printed part,
perform a Material Change Wizard routine to flush the
unwanted material.
1. Part material has a small amount of lot to lot variation.
Prior to printing, confirm that all part material needed for the
job has the same lot code.
1. Parts can fade or change color over time. To reduce the
change in color, limit part exposure to light and heat sources.
1. Avoid stacking or overlapping parts when post processing.
1. In 3DSPRINT, position the part at a slight right angle to
the horizontal surface prior to sending to the printer.
1. The printer encapsulates support (wax) material when
printing which will cause the sides to have a matte finish.
Horizontal surfaces may have a glossy appearance due to the
print process. To eliminate gloss, position the part in
3DSPRINT so that horizontal surfaces are minimized.
1. Check ambient temperature, optimal temperature range
is 18°-24°C (64°-75°F).
2. Verify that the particulate filter and the screen above the
filter are not plugged. Replace as necessary.
3. Make sure the printer is not next to a window in direct
sunlight.
4. Make sure the back of the printer is 12" from the wall.
5. Print parts with large flat surfaces vertically on the print
platform.
1. Lower the oven temperature for parts with large flat
surfaces.
2. Complete all post processing steps of the part.
3. After post processing and cleaning the part, clamp the part
against (or between) a flat surface and place back in the oven
to flatten. Once the part is flat, remove from the oven, keep
the clamp on the part until cool.
1. Run the Shrinkage Compensation Procedure to determine
the Shrinkage Compensation values. See Shrink
Compensation section of the User Manual for assistance.
2. Input new values into 3DSPRINT and reprint the part.